I finally got to get out again with my E-Trac and I am really liking this machine. I went to where an old house was, it has been gone for 50 or 60 years. I have found a few good items there. Today I found several old items but I really like the one pictured. It is a 5 mil Oklahoma Tax Token. During the depression, tokens were given for 10Th's of a cent. If your item cost 1.00 and the tax was .025% then the cost of the item was 1.025. They did not round up or down, so you gave the clerk a dollar and 3 cents and they gave you 5 mils back (1/2 of a cent). You could use the mils just like money, can you imagine someone today trying to make change using 10ths of a cent!! I have found several 1 mils (1/10Th of a cent) but this is my first 5 mil. The 5 mils were made of brass and the 1 mils were made of aluminum. The 5 mils are not rare but it is just my 1st one. Love this E-Trac. HH Randy